In a solution , if salt is dissolved into the water , then water is the ?

Water is the solvent, and the salt is the solute.

A solution consists of a solvent, and a solute. The solvent is the major part of the solution, in this case water, and the solute is the minor component, in this case the salt.

The salt would be the solute so the water would be a solvent

the solute can move "downhill," from regions of higher to lower concentration, relying on the specificity of the protein carrier to pass through the membrane. this process is called passive transport or facilitated diffusion, and does not require energy.